http://www.playstationing.com/ps4/how-to-change-your-nat-type-on-ps4-and-ps3/839
If you want Type 1 NAT (really not necessary unless a poorly programmed game requires it), put your PS4 in the DMZ on your router.
Otherwise, just use it the way it is, and maybe enable UPnP on the router for the Playstation if any of your games have trouble connecting.
http://www.playstationing.com/ps4/how-to-change-your-nat-type-on-ps4-and-ps3/839
If you want Type 1 NAT (really not necessary unless a poorly programmed game requires it), put your PS4 in the DMZ on your router.
Otherwise, just use it the way it is, and maybe enable UPnP on the router for the Playstation if any of your games have trouble connecting.